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From: "Helmut Sennewald"
Subject: Re: Broken HP scope 54600A can't be fixed (absolete) !!??
Date: Fri, 13 Sep 2002 08:02:03 +0200
X-Newsreader: Microsoft Outlook Express 6.00.2800.1106
"dsp1024" schrieb im Newsbeitrag
> Hi all...
> I just started a job and one of the Sr. engineers told me that I could use
> this scope but to leave it on because is broken. I asked why didn't they
> just send it to have it repaired ? They tried, but Agilent (I have the
> packaging slip) said: "UNIT REQUIRES SYSTEM BOARD PART ABSOLETE/INACTIVE.
> RETURNED UNREPAIRED".
> WOW, I graduated last years and they just had gotten a bunch of these
> for the lab. I thought they were great. Are they really obsolete ?
> The problem this unit has is a loss of sync when first turn on. It takes a
> few tries to get the HP logo and starts with two messages that read
> something like this: Vert and Horz factors failed checksum, defaults
it is common way to check the memories during boot in micro
First the EPROM/FLASH is checked and then the EEPROM or a
battery buffered RAM containing specific instruments paramters,
e.g. last setting.
Has the processsor board a battery? If yes it is empty.
It would be more difficult to recover(copy) the EEPROM or the FLASH.
I don't know the boards of the 54600A, but this is my guess.
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